- the normal refractive condition of the eye, in which the rays of light are accurately focused on the retina.
Origin of emmetropia
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for emmetropia
Visual acuteness on both sides 5/12, the left slightly better than the right; emmetropia in mydriasis by atropine.
I have occasionally seen periodic accommodative squint with emmetropia of the fixing eye.
It may, therefore, be useful for our purpose to cite a few cases of periodic convergent strabismus with emmetropia.
Therefore we see the same form of squint arise less often in emmetropia (see Case 45) when childhood is past, than in myopia.
Those cases deserve special consideration in which emmetropia is present in one eye, in the other myopia.
- the normal condition of perfect vision, in which parallel light rays are focused on the retina without the need for accommodation
C19: from New Latin, from Greek emmetros in due measure + -opia
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
- The condition of the normal eye when parallel rays are focused exactly on the retina and vision is perfect.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.